Add Yahoo as a preferred source to see more of our stories on Google. Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest ...

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex is a large area of cold, spinning air that sits near the North Pole and exists year-round. When it weakens or ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

It's that time of the year! An extensive and prolonged Arctic outbreak is on the way to impact much of the United States. From the Rockies through the Northeast and Southeast, temperatures will plunge ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...

Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest stretch of the last 15 years, potentially bringing snow to areas of ...

The polar vortex is a large area of cold, spinning air that sits near the North Pole and exists year-round. When it weakens or shifts, Arctic air can spill south, increasing the risk of snow and ...